Can somebody post the best artifact deck ever? cost doesn't matter
This isn't really an answerable question... If there was a "best artifact deck," people would be playing it. Just the same as the general idea of a "best deck in ____ format." And there are several avenues to go for artifacts in Vintage, be it Shops, Recall/Academy, Tezzeret...
There is a nice combo for artifacts that I know of though. Dross Scorpion (DS), soul foundry (SF), ornithopter(O), and ashnod's altar (AA). This is an infinite mana combo. You have a DS and an AA in play. You play SF and imprint O. O cost zero so you can tap SF and produce a free O. You sacrifice O to AA. Doing this lets you untap something with DS. You untap SF and repeat.
There's no such thing as "best" otherwise it would be a tier 0 format. But if you're asking if there's a artifact deck that's doing good, it's MUD Workshop.
This isn't really an answerable question... If there was a "best artifact deck," people would be playing it. Just the same as the general idea of a "best deck in ____ format." And there are several avenues to go for artifacts in Vintage, be it Shops, Recall/Academy, Tezzeret...
4x Arcbound Ravager
1x Chief of the Foundry
4x Foundry Inspector
2x Hangarback Walker
1x Lodestone Golem
3x Phyrexian Metamorph
4x Phyrexian Revoker
4x Steel Overseer
4x Walking Ballista
Artifacts
1x Black Lotus
1x Chalice of the Void
1x Mana Crypt
1x Mox Emerald
1x Mox Pearl
1x Mox Jet
1x Mox Sapphire
1x Mox Ruby
1x Sol Ring
4x Sphere of Resistance
1x Thorn of Amethyst
1x Trinisphere
4x Ancient Tomb
4x Mishra's Factory
4x Mishra's Workshop
1x Strip Mine
1x Tolarian Academy
4x Wasteland
1x Crucible of Worlds
1x Dismember
4x Grafdigger's Cage
3x Leyline of the Void
3x Null Rod
3x Wurmcoil Engine
Vintage >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Legacy